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REU Students Advance Materials Research Selman P. Hershfield, University of Florida, DMR 0851707

REU Students Advance Materials Research Selman P. Hershfield, University of Florida, DMR 0851707.

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REU Students Advance Materials Research Selman P. Hershfield, University of Florida, DMR 0851707

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  1. REU Students Advance Materials ResearchSelman P. Hershfield, University of Florida, DMR 0851707 Transparent conductors – materials that are both electrical conductors and allow light to pass through - are used in flat panel displays from large televisions to cell phone screens. Yet there are only a few commercially viable transparent conductors. One new possibility is films made of carbon nanotubes (CNT). The CNT films have some advantages, (flexibility) as well disadvantages (lower conductivities) as compared to conventional materials. Stephen French working in the laboratory of Prof. Andrew Rinzler explored methods to increase the conductivity of CNT films. A TEM image of carbon nanotubes that are part of his films is shown. Magnetic resonance of the nuclear dipole moment forms the basis for Magnetic Resonance Imaging (MRI). Magnetic resonance using the nuclear quadrapole moment (NQR) is more challenging, but has the advantage that a large external magnetic field does not need to be applied in order to see a signal. Estefania Perez de Solar working in the laboratory of Prof. Neil Sullivan tested and helped to build (see capacitor box at left) a spectrometer to do NQR. Resonances of the chlorine quadropole were observed in two materials with the ultimate goal to look for a resonance as a signature of Bose-Glass behavior in DTN crystals.

  2. REU Students Participate in K-12 OutreachSelman P. Hershfield, University of Florida, DMR 0851707 Each of the REU students participated in one of our two outreach activities. In the first activity shown at the top the REU students did hands on demonstrations covering such topics as electricity, energy, light, waves, and rotation with 30 high school students visiting with a program from the Miami Museum of Science. In the second activity shown at the bottom the REU students did as similar set of demonstrations except this time geared for 80 3rd to 5th graders from local elementary schools that had received poor evaluations by the state of Florida. The students were brought to campus by the Young Achievers Foundation with funds from the Bill and Melinda Gates Foundation. We participated is this event last year as well.

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